Artist's conception of HD 21749c, the first Earth-sized planet found by NASA's TESS—as well as its sibling, HD 21749b (via Robin Dienel/Carnegie Institution for Science) Exoplanets are like interstellar weeds—as soon as you identify one, another three pop up elsewhere. So, with a growing list of extrasolar orbs to keep track of, the International Astronomical Union (IAU) recently […] The post People From 112 Countries Help Name Exoplanets, Stars appeared first on Geek.com. Read more